1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Katen [24]
3 years ago
5

Solve for x. 3^x−1=9^x+2 Enter your answer in the box.

Mathematics
1 answer:
slava [35]3 years ago
4 0

Answer:

-5 =x

Step-by-step explanation:

3^(x-1) = 9^(x+2)

Replace 9 with 3^2

3^(x-1) = 3^2^(x+2)

We know that a power to a power means the powers are multiplied

a^b^c = a^(b*c)

3^(x-1) = 3^(2x+2)

When the bases are the same, the powers have to be the same

x-1 = 2x+4

Subtract x from each side

x-x-1 =2x-x+4

-1 =x+4

Subtract 4 from each side

-1-4 =x+4-4

-1-4 = x

-5 =x

You might be interested in
Does anyone know this algebra question? 15 points
Vesnalui [34]
The answer is 669
5^4-2(5)^3+5(5)^2+-7(5)+4
625-250+125-35+4
hope this helps!
8 0
3 years ago
Read 2 more answers
The probability that a person who has made a reservation for a trip on a twelve-vehicle ferry will actually arrive and make the
skad [1K]

Answer:

D

Step-by-step explanation:

5 0
3 years ago
Determine the nth term rule and find the 45th term for the arithmetic sequence with a10=1 and d-6
kari74 [83]

Answer: -209

Step-by-step explanation:

Formula for arithmetic progression

= a + (n - 1)d

Since a10 = 1 and d = -6

a10 = a + 9d

a + 9(-6) = 1

a - 54 = 1

a = 1 + 54

a = 55

Therefore, 45th term = a + (n - 1)d

= a + (45 - 1)d

= a + 44d

= 55 + 44(-6)

= 55 - 264

= -209

4 0
3 years ago
I need help, please! ASAP.
dmitriy555 [2]

Answer:

Formula for percent change is C = {x_2 - x_1}/{x_1}  

C = relative change

x_1 = initial value

x_2 = final value

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
How many times larger is 4 x 10 12 than 8 x 10 7?
USPshnik [31]

Answer:

50000 times

Step-by-step explanation:

Since these are given in scientific notation, we can convert them to have the same powers of 10. Converting 4*10^12 to something times 10^7, we can get 4*10^5*10^7. So we divide 400000 by 8 to see how many times larger it is than 8. So we get 50000 times as our answer.

5 0
3 years ago
Other questions:
  • What is the result of isolating y2 in the equation below? 9x2 + 7y2 = 42
    8·1 answer
  • Need some help on this
    5·1 answer
  • Find the area of the shaded region.​
    8·1 answer
  • Tell me the answerrr plz
    10·1 answer
  • The following formula is for the area, A, of the curved surface area of a cone.
    9·2 answers
  • What are two solutions to x>29
    6·1 answer
  • What will be the coordinates of point A if figure ABCD is reflected across the x-axis?​
    12·1 answer
  • 1.Scale Factor : 4
    14·1 answer
  • Round the following numbers to the nearest tens.<br>1. 352<br>Your answer​
    12·1 answer
  • Which equation is not true?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!